Nut-lock.



G. F. CLAWSON.

NUT LOGK.

APPLICATION FILED NOV. 22, 1909.

Patented May 10, 1910.

672 L Zawszv/L CHARLES F. CLAWSON, OF MOUNT PLEASANT, IOWA.

NUT-LOCK.

To all whom it may concern:

Be it known that I, CHARLES F. CLAWSON, a citizen of the United States,residing at Mount Pleasant, in the county of Henry and State of Iowa,have invented certain new and useful Improvements in Nut-Locks; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in nut locks.

One object of the invention is to provide a nut lock which will beparticularly adapted for use in connection with the nuts of railway fishplates whereby said nuts are securely held against unscrewing from thebolts.

A further object is to provide a nut lock of this character which willbe simple and inexpensive in construction, efficient and reliable inoperation and Well adapted to the purpose for which it is designed.

With the foregoing and other objects in view, the invention consists ofcertain novel features of construction, combination and arrangement ofparts, as will be more fully described and particularly pointed out inthe appended claims.

In the accompanying drawings, Figure 1 is a side View of a portion oftwo railway rails, showing the application of the invention thereto;Fig. 2 is a horizontal section on the line 2-2 of Fig. 1; Fig. 3 is across section on the line 3-3 of Fig. 1; Fig. 4 is a perspective view ofthe look.

In the embodiment of the invention, I provide a rod or bar 1, which maybe of any desired length and is bent at one end to form a rightangularly projecting loop 2 and a spring arm 3. At its opposite end, therod or bar 1 is bent at a slight angle to form a nut engaging finger 4:.

In the application of the lock, arm 3 is inserted between the fish plateand the adjacent side of the web of the rail, while the right angularlybent loop 2 engages the end of the fish plate, as shown. Then the partsare in this position, the

the spring Specification of Letters Patent.

Application filed November 22, 1909.

Patented May 10, 1910. Serial No. 529,280.

rod or bar will be disposed below and in engagement with the lower sidesof the nuts on this side of the fish plate and the rod or bar 1 is madeof such length that the angularly bent finger on the end thereof willengage and fit around the last nut of the series. I/V hen the rod or baris t-hus'engaged with the nut, the loop shaped on the end of the rodwhich bears against the fish plate will prevent the rod from movingdownwardly, and the rod will thus be held in engagement with the sidesof the nuts, preventing the latter from turning or unscrewing from thebolts. When it is desired to unscrew the nuts, the rod or bar 1 may besprung downwardly and the lock removed from the fish plate, thuspermitting the nuts to be unscrewed.

A nut lock constructed as herein shown and described may be quickly andeasily secured to the fish plate of a rail joint and readily detachedtherefrom when it is desired to unscrew the nuts of the oint.

Particular attention is invited to the extreme simplicity of my improvedlock and to the inexpensive construction of the same.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without rcquiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention, as defined in theappended claims.

Having thus described my invention, what I claim is 1. A nut lock of thecharacter described comprising a rod or bar, a right angular loop formedon one end of said rod, a spring fastening arm formed on said loop, andmeans formed on the opposite ends of the rod to engage one of the nutswhereby the rod is held in position and against longitudi nal movementin one direction on the fish plate.

2. A nut lock of the character described comprising a nut engaging rod,a right anspring arm formed on said loop and pro- In testimony whereof Ihave hereunto set gular 100p formed on one end of said rod, a y hand Inpresence of two subscribing wit- 'ecting parallel with said rod andadapted nesses. to be inserted between the fish plate and the CHARLES F.CLAVSON.

adjacent side of a rail, and an angularly bent Vitnesses: finger on theopposite end of said rod to en- 0. M. CLARK, gage one of the nuts to belocked. l E. POGGE.

